From: Trans <transfire@...>
Date: 2007-11-04T07:43:44+09:00
Subject: Re: Passing keyword arguments



On Nov 3, 4:47 am, "Robert Dober" <robert.do...@gmail.com> wrote:
> On Nov 3, 2007 1:27 AM, Trans <transf...@gmail.com> wrote:
>
> > Lets say I have a method using the not-so-uncommon keyword options
> > pattern:
>
> >   def foo(*args)
> >     opts  = (Hash === args.last ? args.pop : {})
>
> Hi Tom
>
> irb(main):001:0> def foo *args
> irb(main):002:1>   opts, args = args.partition{|x| Hash === x }
> irb(main):003:1>   opts = opts.inject{ |s,x| s.update x }
>
> seems this should do the trick
>
> >     ...
>
> > Now I want to define another method, which is essentially a special
> > alias, that places a particular option as the first argument:
>
> >   def bar(opt, *args)
> >     foo(*args, :baz => opt)  # doesn't work.
>
> now it does , almost
>         foo( :baz => opt, *args)

Interesting approach. Thanks.

T.